GeForce GT 440 1.5GB vs GeForce GTX 660

Intro

Compare those specs to the GeForce GTX 660, which features core clock speeds of 980 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 RAM. It features 960 SPUs along with 80 Texture Address Units and 24 ROPs.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 660		5063 points
GeForce GT 440 1.5GB		840 points
	Difference: 4223 (503%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
GeForce GTX 660		140 Watts
	Difference: 84 Watts (150%)

Memory Bandwidth

Theoretically, the GeForce GTX 660 should be quite a bit faster than the GeForce GT 440 1.5GB in general. (explain)

GeForce GTX 660		144192 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 100992 (234%)

Texel Rate

The GeForce GTX 660 is quite a bit (approximately 450%) better at AF than the GeForce GT 440 1.5GB. (explain)

GeForce GTX 660		78400 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 64144 (450%)

Pixel Rate

The GeForce GTX 660 is much (more or less 65%) more effective at full screen anti-aliasing than the GeForce GT 440 1.5GB, and should be capable of handling higher screen resolutions better. (explain)

GeForce GTX 660		23520 Mpixels/sec
GeForce GT 440 1.5GB		14256 Mpixels/sec
	Difference: 9264 (65%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of data (measured in megabytes per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.